4 Runner 4WD V8-4.7L (2UZ-FE) (2003)
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Oil Pressure Warning Lamp/Indicator: Testing and Inspection
INSPECT LOW OIL PRESSURE WARNING LIGHT
a. Inspect the circuit.
1. Disconnect the connector from the low oil pressure switch.
2. Turn the ignition switch to ON.
3. Connect the terminal on the wire harness side connector and ground. then check the warning low oil pressure warning light.
Low oil pressure warning light: Light on